Is DV Lottery Really a Lottery?

The green card won from USA Immigration Office that guarantees foreigners to work and live in USA is called DV lottery? Is that really a lottery? Is working for 16 hours a day and returning the sweat of the labour through piles of bills per month a lottery? I wonder why people are highly excited when they win this lottery. Cannot people work hard and live in their own country. It is true that USA is democratic country as compared to, say, African countries. It is true that USA has beautiful buildings. But can one lead life with observing buildings and enjoying democracy with economic wellbeing? In terms of economy, anyone who works at home as hard as s/he works in USA can definitely earn higher profit and save more money at home. This is because the energy, courage, knowledge, etc, is more at home than abroad. This is a real fact. Most of the people enthusiastic for a green card to work and live in USA are from underdeveloped countries. What these people do not understand is the availability of unexploited resources ready for exploitation in their own country. That their own country is much easier for self than in advanced countries! So, winning a green card is not really a lottery.